BCM380y475x1K2A30
Electrical Specifications (Cont.)
Specifications apply over all line and load conditions, unless otherwise noted; Boldface specifications apply over the temperature range of -40°C ≤ TINTERNAL
≤ 125°C (T-Grade); All other specifications are at TINTERNAL = 25ºC unless otherwise noted.
Attribute
Symbol
Conditions / Notes
Min
Typ
Max
Unit
Powertrain (Cont.)
Effective Output capacitance (internal)
Effective Output capacitance (external)
COUT_INT
Effective value at 47.5 VOUT
25.6
µF
µF
Excessive capacitance may drive module into
SC protection
COUT_EXT
0
100
COUT_AEXT Max = Number of Modules
* 50 % of Rated Module COUT_EXT Max
Applications note 06 "Using BCMs in high power Array"
Array Effective Output capacitance
(external)
COUT_AEXT
Protection
Startup into a persistent fault condition.
Non-Latching fault detection given VIN > VIN_UVLO+
Auto Restart Time
tAUTO_RESTART
292.5
357.5
ms
Input overvoltage lockout threshold
Input overvoltage recovery threshold
Input overvoltage lockout hysteresis
Overvoltage lockout response time
Input undervoltage lockout threshold
Input undervoltage recovery threshold
Input undervoltage lockout hysteresis
Undervoltage lockout response time
Undervoltage startup delay
VIN_OVLO+
VIN_OVLO-
VIN_OVLO_HYST
tOVLO
420
405
434.5
424
10.5
100
221
243
15
450
440
V
V
V
µs
V
VIN_UVLO-
VIN_UVLO+
VIN_UVLO_HYST
tUVLO
200
225
240
259
V
V
100
20
µs
ms
tUVLO+_DELAY
From VIN = VIN_UVLO+ to powertrain active, EN floating
From powertrain active
Soft-Start time
tSOFT-START
1
ms
Fast Current limit protection disabled during Soft-Start
Output overcurrent trip threshold
IOCP
tOCP
ISCP
tSCP
tOTP
tUTP
28
45
37
50
A
ms
A
Output overcurrent response time constant
Short circuit protection trip threshold
Short circuit protection response time
Overtemperature shutdown threshold
Undertemperature shutdown threshold
Effective internal RC filter
3.2
1
3
µs
ºC
ºC
Temperature sensor located inside controller IC
Temperature sensor located inside controller IC
Startup into a persistent fault condition.
125
-45
Undertemperature Restart time
tUTP_RESTART
s
Non-Latching fault detection given VIN > VIN_UVLO+
BCM® Bus Converter
Page 6 of 24
Rev 1.0
vicorpower.com
800 927.9474
12/2013
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